Geometrical instruments – Miscellaneous – Light direction
Patent
1974-07-03
1977-04-19
Martin, Jr., William D.
Geometrical instruments
Miscellaneous
Light direction
2351511, 2351513, G05B 1300
Patent
active
040179761
ABSTRACT:
A method and apparatus for selecting the indicators on a backgauge of a crosscut saw to optimize the yield of usable lengths of stock such as boards of lumber having random unusable lengths containing knots, discoloration or the like from a grade mix of material being processed including the steps of determining the lengths of stock required, storing information describing the required lengths, calculating a value factor for each required length, and storing the value factor, storing statistical data describing usable lengths in various grades of stock, storing information on the proportions of the various grades being processed, determining and storing priority factors to increase the probability of cutting desired lengths, calculating the positions for the backgauge indicators, based on the stored information, which represent optimum possible combinations of lengths for each usable length which can be cut into the desired lengths, and listing the indicators at positions of full scale on a continuous sheet of paper.
REFERENCES:
patent: 3151237 (1964-09-01), Hrabak
patent: 3490147 (1970-01-01), Brichard et al.
patent: 3633009 (1972-01-01), Green
patent: 3870872 (1975-03-01), Johnson
patent: 3876872 (1975-04-01), Spitz
Barr Anthony J.
Mullin Alexander G.
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